Climate Induced Historic and Future Changes in Viticulture

Schultz, Hans R.; Jones, Gregory V.

doi:10.1080/09571264.2010.530098

Cited by 180 publications

(148 citation statements)

References 25 publications

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“…Total shoot length was measured as the sum of length of the main shoot plus laterals. Total leaf area per shoot was calcuhigh-temperature ripening processes and to technological, phenolic and aromatic ripeness mismatch (Schultz & Jones, 2010). In addition, anthocyanin synthesis is highly related to temperature.…”

Section: Sampling and Measurement Of Vegetative Yield And Grape Compmentioning

confidence: 99%

Vine vigor, yield and grape quality assessment by airborne remote sensing over three years: Analysis of unexpected relationships in cv. Tempranillo

Bonilla

Toda

Martínez‐Casasnovas

2015

Span. j. agric. res.

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<p>The prediction of grape composition is becoming more important due to the need of reducing the current levels of alcohol and pH of the wines, a problem that is exacerbated by climate change. This work presents a 3-year study of the spatial variability of grape composition in a rainfed Tempranillo vineyard located in Rioja (Spain). It is based on the acquisition of multispectral imagery at <em>véraison</em> (start of the ripening process); and zoning based on NDVI, to assess its performance for zonal management. The results reveal a high spatial variability within the plot, with a stable pattern over the years, even with very different climate conditions. NDVI was a good predictor of vegetative growth variables. However, the prediction of grape composition was more complex. Unexpectedly, anthocyanins were found to be higher in the highest vigor zone, which is probably related to the effects of climate change. This unexpected relationship is particularly discussed in the article.</p>

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Section: Sampling and Measurement Of Vegetative Yield And Grape Compmentioning

confidence: 99%

Vine vigor, yield and grape quality assessment by airborne remote sensing over three years: Analysis of unexpected relationships in cv. Tempranillo

Bonilla

Toda

Martínez‐Casasnovas

2015

Span. j. agric. res.

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“…In the first stage, a key issue is the impact of water scarcity and increasing temperature under climate change on the productivity and quality of Chianti. Although climate change generally has a beneficial effect on quality of wine worldwide (Shultz and Jones 2010;Battaglini et al 2009;Jones and Webb 2010), the impact on Chianti in the future is unclear. Therefore, we use a modelling approach to simulate impacts under different climate scenarios.…”

Section: Introductionmentioning

confidence: 99%

A model-based assessment of adaptation options for Chianti wine production in Tuscany (Italy) under climate change

et al. 2014

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This paper covers a comprehensive economic analysis of climate change adaptation options for a specific wine producing region, namely Tuscany. As temperature increases under climate change, rainfall patterns will be different, and Chianti wine production in Tuscany therefore needs to adapt in the near future. We address the adaptation challenges and identify grape yield and quality loss as the main impact of climate change on wine production. Relocation of vineyards uphill and introducing drought-resistant varieties are considered as adaptation measures. We appraise these adaptation measures using an optimization framework, where regional wine producers maximize income subject to economic constraints including the climate change impacts on wine productivity and quality. Our simulation shows quantitatively to what extent a higher degree of climate change impact demands a higher degree of adaptation. We find that a combination of the two measures provides a better strategy because it leads to higher economic efficiency. However, uncertainty regarding the efficiency of the new variety discourages the use of this new drought-resistant variety, whereas a higher efficiency would make this choice more favourable. Sensitivity analysis for time horizon and discount rate confirms the theory of investment under uncertainty, showing a shorter time horizon (or more frequent investment) provides the possibility to postpone the decision to implement adaptation measures due to the value of flexibility, while a higher discount rate leads to a later adaptation decision, because uncertainty creates a value of waiting for new information.

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“…wine producing regions over the world (White et al, 2006;Schultz and Jones, 2010;Briche, 2012) and was evident in interviewees' responses from both regions. A major consequence for producers is that grapevine growth and maturation occurs not only in a hotter climate generally, but also earlier in the season and thus the key growth period of maturation occurs in the warmer period of the year.…”

Section: Echogéo 23 | 2013mentioning

confidence: 99%

Assessing vulnerability and framing adaptive options of two Mediterranean wine growing regions facing climate change: Roussillon (France) and McLaren Vale (Australia)

Lereboullet¹,

Bardsley²,

Beltrando³

2013

echogeo

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Une hausse des températures et une baisse des précipitations pourraient être préjudiciables au maintien d’une viticulture de qualité dans les régions de climat méditerranéen. Cet article propose d’étudier l’exposition récente et future de deux régions viticoles méditerranéennes à de tels changements : le Roussillon (France) et McLaren Vale (Australie) ; ainsi que de cerner les éléments concourant à augmenter leur vulnérabilité face à ces changements, et en retour les éléments qui permettraient d’améliorer leur capacité d’adaptation. Une étude de données de température et de précipitations observées (1956-2010) à Perpignan et Adelaïde, et simulées (2001-2060) par ARPEGE-RETIC-V4 et CSIRO Mk3.5, a été complétée par soixante-et-un entretiens avec des acteurs-clés de la filière viti-vinicole dans les deux régions. Les résultats montrent que les producteurs ont dû faire face ces dix dernières années à une augmentation de la température et à une baisse des précipitations, et que cela est, selon les modèles, amené à se répéter d’ici 2060, malgré une grande part d’incertitude. Ces conditions ont des impacts négatifs sur la maturation du raisin, qui ne pourront pas forcement être gérés avec les techniques actuelles. La mise en place de stratégies d’adaptation à l’incertitude du climat, couplées à celle des marchés, s’appuie sur : un capital financier suffisant, une gestion durable des ressources en eau, et une souplesse de la législation. Pour cela, la diversification et l’entreprenariat des producteurs sont particulièrement importants.

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Climate Induced Historic and Future Changes in Viticulture

Cited by 180 publications

References 25 publications

Vine vigor, yield and grape quality assessment by airborne remote sensing over three years: Analysis of unexpected relationships in cv. Tempranillo

Vine vigor, yield and grape quality assessment by airborne remote sensing over three years: Analysis of unexpected relationships in cv. Tempranillo

A model-based assessment of adaptation options for Chianti wine production in Tuscany (Italy) under climate change

Assessing vulnerability and framing adaptive options of two Mediterranean wine growing regions facing climate change: Roussillon (France) and McLaren Vale (Australia)

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